Lieutenant Commander NFNNMI Data

I was watching a Youtube video with deleted scenes from the Season 2 episode The Child. Chief O’Brien wasn’t able to beam aboard something because it was hazardous. He didn’t have the authority to override the hazard protocols, so Data did it for him. In order to override the protocols, Data gave his authorization, starting by saying “Computer, recognize Lieutenant Commander NFNNMI Data.” (He said the letters, he didn't try to pronounce them as a word). What in the world is NFNNMI?? Is that Data’s first name? Is it the initials of his first name? Lol!! I never heard NFNNMI in any other episodes.

Anyway, I'd think that Data would be his first name. If he had a full name, it would presumably be Data Soong, considering that Noonien Soong is regarded as his "father."

For that matter, I tend to wonder why Worf isn't called Mr. Rozhenko. I mean, he was legally adopted by the Rozhenkos, so presumably he was legally given their surname. True, people who've been adopted can choose to revert to their birth names, but it's hard to see why Worf would've wanted to. It's not like he was estranged from the Rozhenkos, and until he met Kurn he had no idea he had a birth family to reconnect with. I guess he could've decided to do it to honor his house's name, though, as the last surviving member as far as he knew. Still, it would've been nice if they'd said so. It always seemed inconsistent that someone who'd spent most of his formative years raised by humans would've turned out so stereotypically Klingon.

It was never said on screen but it appeared three times in "The measure of a man". It now is legible (thanks to HD) on Data's Starfleet Academy diploma (only in the extended episode, though), in the schematics Riker views of Data and on his carry case.

I was watching a Youtube video with deleted scenes from the Season 2 episode The Child. Chief O’Brien wasn’t able to beam aboard something because it was hazardous. He didn’t have the authority to override the hazard protocols, so Data did it for him. In order to override the protocols, Data gave his authorization, starting by saying “Computer, recognize Lieutenant Commander NFNNMI Data.” (He said the letters, he didn't try to pronounce them as a word). What in the world is NFNNMI?? Is that Data’s first name? Is it the initials of his first name? Lol!! I never heard NFNNMI in any other episodes.

I'd assume that his surname would be given as "son of Mogh" (which in Klingon would be Mogh puqloD, as far as I can tell). After all, there are plenty of similar "son of" surnames in human languages, like Jackson, McAndrew, O'Brien, ap Hugh, etc.

And Spock does have a family name, according to "This Side of Paradise" and "Journey to Babel," but it's very difficult for humans to pronounce. The novel Ishmael claimed it was S'chn T'gai, while the fan-published U.S.S. Enterprise Officer's Manual claimed it was "Xtmprszntwlfd."